Zobrazeno 1 - 10
of 74
pro vyhledávání: '"coalface"'
Publikováno v:
Applied Sciences, Vol 14, Iss 22, p 10278 (2024)
The safety and efficiency of underground coal mining are threatened by thick hard roofs characterized by large overhang areas, problematic spontaneous caving, and high dynamic load upon their breakage. In this study, a mechanical model of the bearing
Externí odkaz:
https://doaj.org/article/85694244dcbb4afcb69cd9abaef50be2
Autor:
Mikhail S. Nikitenko, Sergey A. Kizilov, Yuri N. Zakharov, Danila Yu. Khudonogov, Alla Yu. Ignatova
Publikováno v:
Горные науки и технологии, Vol 7, Iss 4, Pp 264-273 (2022)
The technology for extracting and discharging coal from an underroof seam uses the so-called gravitational extraction method in which coal is extracted and discharged from under the roof by gravity. Here, coal can be discharged onto the main conveyor
Externí odkaz:
https://doaj.org/article/7f45d59597364e3b8bccd728d6ba7203
Akademický článek
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Publikováno v:
Energy Reports, Vol 7, Iss , Pp 278-288 (2021)
For longwall top coal caving coalface characterized by strong rock burst tendency and high risk of spontaneous combustion, retreat speed is one of the key factors to induce the rock burst and spontaneous combustion of residual coal in goaf. A high re
Externí odkaz:
https://doaj.org/article/3e10d70e08f440b0aab09c3d0b250bc3
Publikováno v:
Trade. Spring2016, Issue 47, p13-13. 2/3p.
Publikováno v:
Applied Sciences, Vol 10, Iss 7, p 2258 (2020)
High-strength mining of super-large coalfaces in the Shendong coalfield causes significant damage to the ground surface. To study the key parameters of undermined coalfaces that affect ground damage, 25 numerical simulation models were designed using
Externí odkaz:
https://doaj.org/article/b5e6199b6816430daea40c66f7849a86
Publikováno v:
Energy Reports, Vol 7, Iss, Pp 278-288 (2021)
For longwall top coal caving coalface characterized by strong rock burst tendency and high risk of spontaneous combustion, retreat speed is one of the key factors to induce the rock burst and spontaneous combustion of residual coal in goaf. A high re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaf6d15879eb74e7d145789609aa4729
http://www.sciencedirect.com/science/article/pii/S2352484720317376
http://www.sciencedirect.com/science/article/pii/S2352484720317376
Publikováno v:
Applied Sciences, Vol 10, Iss 7, p 2258 (2020)
Applied Sciences
Volume 10
Issue 7
Applied Sciences
Volume 10
Issue 7
High-strength mining of super-large coalfaces in the Shendong coalfield causes significant damage to the ground surface. To study the key parameters of undermined coalfaces that affect ground damage, 25 numerical simulation models were designed using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0690237245124525b45abc09afe022d8
https://www.mdpi.com/2076-3417/10/7/2258
https://www.mdpi.com/2076-3417/10/7/2258